![]() The main program can resume the Fiber from the point it was suspended. With Fibers, the code block within the Fiber can suspend the code block and return any data back to the main program. Fibers are created, started, suspended, and terminated by the program itself, and allows fine control of the main program execution and the Fiber execution. Threads are scheduled by the operating system, and does not guarantee when and at which point the threads are paused and resumed. ![]() In essence, a Fiber is a code block that maintains its own stack (variables and state), that can be started, suspended, or terminated cooperatively by the main code and the Fiber.įibers are similar to threads in a computer program. Fibersįibers is a new feature in PHP 8.1 that brings lightweight and controlled concurrency to PHP. magic numbers) to store and work with parameters, Enums make the application code more readability, and avoids unexpected application state. ![]() In contrast to using special strings or numbers internally (i.e. In PHP, these suits can be enumerated with an Enum: enum Suit pick_card(Suit::Clubs) A deck of playing cards has four suits, and they are fixed: Clubs, Diamonds, Hearts, and Spades. An Enumeration, or an Enum for short, is an enumerated type that has a fixed number of possible values.Ī popular analogy for an Enum is suits in a deck of playing cards. Further, it adds Fibers, which makes a significant step towards concurrent PHP applications, which sets PHP beyond the traditional request-response pattern. PHP 8.1 adds features such as Enums, which was one of the most frequent and anticipated features to land in PHP. It also deprecates a handful of features, which might add some friction when upgrading legacy PHP applications to PHP 8.1. Some of the highlights of PHP 8.1 include support for Enums, Fibers, never return type, Intersection Types, readonly properties, and first-class callable syntax. They will be making the minor releases in PHP 8.1 series until PHP 8.1 reaches its end-of-life at the end of year 2024. Release managers for PHP 8.1 are Joe Watkins, Ben Ramsey, and Patrick Allaert. It also adds more features that encourages defensive programming. PHP 8.1 is a continuation of PHP's progress in providing a type system improvements. When the table below is examined, the differences between them will be understood more clearly.PHP 8.1 is a major new version to PHP, which brings several new features, quality-of-life improvements, and attempts to prepare PHP to iron out some of its legacy features by deprecating and restricting certain undesired functionality. Get_debug_type(): get_debug_type () does the same thing as gettype () we used before and returns us the type of the variable. Str_ends_with(): Checks if a string expression ends with another string expression. Str_starts_with() :Checks whether a string expression starts with another string expression. Str_contains("PHP is awesome", "PHP") // Output : true Str_contains ( string $haystack, string $needle ) : With PHP 8, it allows multiple type definitions in variables, parameter declarations in functions, and function return type declarations. If you’re not sure if it’s enabled, you can check using the opcache_get_status function. Its default value is 0, so the JIT compiler is disabled. Then we need to allocate memory like opcache.jit_buffer_size=1024M to enable JIT. For this, we need to set opcache.enable=1 in php.ini file. Since JIT is part of OPcache, OPcache must be enabled. JIT working mechanism the code is monitored and frequently used parts are compiled as bytcode and the compiled parts are executed at runtime. JIT was implemented as an almost independent part of OPcache. PHP 8 offers two JIT compilation engines. The most notable innovation with PHP 8 is the JIT (just in time) compiler. PHP 8 version was released on 26 November 2020. In this post, I will explain the new features that come with PHP 8. ![]() With these new features, PHP has become a more powerful, modern, stable and faster language. Many new features have come to PHP over the years.
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